The bone marrow puncture site of a puncture needle

The posterior superior iliac spine or anterior superior iliac spine of the pelvis is usually selected for bone marrow puncture. The bony marks of this site are clear and there are no large vessels and nerve trunks around, so it is safe. If the materials for multiple puncture are not satisfactory, sternum puncture can be selected in a few cases. As long as the oblique needle is performed (the needle is inserted into the sternum at 30° ~ 45°) without penetrating the sternum, it is also safer. Before puncture, local anesthesia should be carried out at the puncture point. The anesthetic drug is from the skin and subcutaneous to the periosteum on the bone surface, so the puncture will not bring pain to the patient. Skilled operators usually finish in just over 10 minutes, so there is no need to worry. It is not advisable to clean the puncture site (including bathing) 2 ~ 3 days after sticking sterile dressing to avoid local infection.

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